> From: Eric Dumazet <dada1@cosmosbay.com>>> new_inode() dirties a contended cache line to get increasing inode numbers.>> Solve this problem by providing to each cpu a per_cpu variable, feeded by the> shared last_ino, but once every 1024 allocations.

Most file systems don't even need this because they allocate their own inode numbers, right?. So perhaps it could be turnedoff for all of those, e.g. with a superblock flag.